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Toenail fungus is a living organism that thrives in dark, damp
environments such as under and around nails. Fungal infections are
very common on both fingernail and toenails. Toenails are more
likely to be affected by fungus since it is attracted to a dark and
damp environment which is more common on the foot than on the hand.
In more severe conditions, affected nails can have a yellowish or
brownish discoloration. They may thicken or become brittle over
time, and may even shed. Sometimes the nails have crumbling edges.
It can be unsightly, disfiguring, embarrassing, and at times, painful.
The nail itself provides a protective covering that allows the
fungus to grow underneath. An accumulation of keratinous debris
is usually found beneath the free edge of the infected nail.
Other names for toenail fungus are: onychomycosis of the nail plate,
and tinea of the nails.
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